I need to return my Rogers Samsung Captivate as it issues with some of the buttons so I decided to Root the one I have now

- I used Superoneclick to Root it = WORKED
- I downloaded Onelagfix and tried to UNROOT from there and did Factory Reset

Now Superuser is still there, so I tried to Unroot form Superoneclick.exe and it says No Superuser found

- I tried to Re-Root, doesnt work , it goes to a Loop

How can I make this device go back to it's original or does it matter if they see Superuser APP on the phone? please help

Things I tried

ROOT Manager to delete the APP
I tried Factory Reset

This won't even work for me via Terminal Emulator
su
rm -r /system/app/Superuser.apk
rm -r /system/xbin/busybox
rm -r /system/bin/su

======================

Do I go back to Stock? I have Rogers Stock Files Downloaded?

Any guidance

 

I am not from AT & T, from Rogers.. does that matter for the file above- I need to return the phon

 

Didn't work, said Status [7] and in the errors above, it said i897, mine is i896